Compare bowling balls
Core numbers are compared in one weight. Some brands only publish them for one weight.
Hammer Black Widow Spare+
|
Hammer Black Widow Viz-A-Ball
|
Storm Ion Max
|
Storm Ion Max Pearl
|
|
|---|---|---|---|---|
| Brand | Hammer | Hammer | Storm | Storm |
| Line | Spare Ball | Spare Ball | Premier | Premier |
| Coverstock | Polyester | Polyester | NRG Solid | NRG Pearl |
| Cover type | Polyester | Polyester | Solid reactive | Pearl reactive |
| Core | Gas Mask | Gas Mask | Element Max AI | Element Max AI |
| Core type | Asymmetric | Asymmetric | Asymmetric | Asymmetric |
| RG | 2.480 | 2.480 | 2.470 | 2.470 (16 lb) |
| Diff | 0.058 | 0.058 | 0.055 | 0.053 (16 lb) |
| Int. diff | 0.013 | 0.013 | 0.014 | 0.013 |
| Factory finish | 500, 1000, 2000 Siaair / Factory Polish | Factory Polish | 2000 Grit | Power Edge |
| Lane condition | Light oil | Light oil | — | — |
| Flare potential | — | — | High | High |
| Reaction | Straight | Straight | — | — |
| Color | White Diamond | — | Neon Pink / Indigo / White | Cobalt / Aqua / Ivory |
| Release date | September 17, 2026 | November 19, 2021 | September 20, 2024 | March 13, 2026 |
| Status | Current | Current | Current | Current |
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